week11

Week 11: Applications and Implications

Week Objective:

Propose a final project masterpiece that integrates the range of units covered.
Define the scope of a project
Develop a project plan

My project is dived into two parts:

Electronics	Robot Design

1. Electronics:

line following	main board	Power PCB
check, solder, connection with the main board, 3D case.	Atmega 328p	Motor drive & Power battery

Outputs	Inputs	Communication
Motors, LED strip.	Line following, MPU, Ultrasonic.	Bluetooth(HC05 )

2. Robot Design:

Robot structure
Motor holder
Wheels design
Chassis
Tracks
Supports.
Electronics box.

Have you answered these questions?

1. What will it do?

I want to build a Robot that gives a guided tour for Fab Lab visitors and navigate them to all the rooms at the lab (service robot).

2. Who has done what beforehand?

Similar Robots used to guide users:

LG Airport Guide Robot ‘AirStar’
LoweBot Robot

3. What will you design?

A Mobile Robot:

CAD Design:

Robot structure
Motor holder
Wheels design
Chassis
Tracks
Supports.
Electronics box.

PCB Design for:

Line following sensor.
Main board: ATemga 328P.

4. What materials and components will be used? 7. What parts and systems will be made? 8. What processes will be used?

Materials:

Plywood: for robot structure, Chassis, and, Tablet holder using CNC milling
Acrylic: for some parts in the robot using laser cutting.
HPDE: for Tablet holder using CNC milling.
Aluminum sheet: for covering the robot, the outer structure using laser cutting.
Flexible filament: for Wheels tire using 3D printing.
PLA filament: for Wheels rim, electronics box, motor support, robot support , and, sensor cover using 3D printing
Vinyl Sticker: for robot tracks using Vinyl cutter

Components:

Inputs:

Line Tracking sensor.

Outputs:

DC motor
LED strip.

Others:

Motor Driver.
Power Supply: Battery.
Microcontroller: ATemga 328p.
Tablet

5. Where will they come from?

Seems all the components and materials I needed are available in the lab. if I found something not available I will order it.

6. How much will they cost?

Qty	Description	Price	Link	Supplier	Notes
2	DC Motors	~30.00AED			From Ali
1	L298N Motor Drive	~10.00AED			Already exists in the Lab
1	LED strip	~ 30 AED			Already exists in the Lab
1	Aluminum Sheet Satin Silver	308.41 AED = 83.97$	link	bluerhine.store
2	Support wheels	~ 15.00AED
1	Wood/Plywood sheet	~100AED			Already exists in the Lab
1	Acrylic(Matte 3mm + Clear 10mm)	~50AED			Already exists in the Lab
4	IR and Photodiode	~ 30 AED			They ordered many, I burned some of them while testing.
1	colorfabb NGEN_FLEX filament	$45.95= 168.77 AED			Already exists in the Lab- I used a lot of the filament for testing.
1	PLA filament	~ 158.14 AED			Already exists in the Lab
1	FR1 copper sheet	~5.00AED			Already exists in the Lab-I used a lot of sheets for testing.
-	Nuts and screws … etc	~5.00AED			Already exists in the Lab
-	Black Matte Vinyl Sticker	~20.00AED			Already exists in the Lab-I used a lot of sheets for testing
-	Samsung Galaxy Tab S3	~1330AED			Already exists in the Lab
-	SMD components	~30.00AED			Already exists in the Lab

Total cost = ~ 2000 AED

8. What questions need to be answered?

What Algorithms I need to use?
How much will the robot weight?
Power supply to use?
Motor type?
What Communication I need to use?
How to make the robot following the line smoothly?
How to select the motor type?
How to select the wheel diameter?
How to fabricate the wheels? which technique is better to be used?
How to select the speed of the robot?
How much power I need to supply the robot?
How to display the lab guidance? module ?
What sensors I will have?
where to place the Robot station?!

9. How will it be evaluated?

I will be happy, If the robot navigates visitors correctly, and can detect the objects to avoid collisions. Moreover, be able to give a guided tour of the lab, and explain different actives happens at the lab.

This work is licensed under a Creative Commons Attribution 4.0 International License